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<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>textarea 文本域</title>
</head>

<body>
  <form action="">
    今日反馈：<br>
    <textarea name="" id="" cols="30" rows="10">我知道这个反馈留言是textarea来做的</textarea>
  </form>
</body>

</html>